a. Flowering branch. b. Detached large leaf. c. Variation in position of glands on petiole and base of lamina. d. Flower subtended by pedicel and peduncle with portion of inflorescence axis. e. Pedicel-peduncle joint with bracteoles on peduncle. f. Lateral petals. g. Posterior petal. h. Partial androecium laid out, abaxial view, the stamen on left opposite posterior petal. i. Gynoecium. j. Cocci, lateral view (left) and adaxial view (right). k. Embryo. Scale bar equivalents:
a, b, 4 cm; c, h–j, 4 mm; d, 1 cm; e, 2 mm; f, g, 8 mm; k, 2.7 mm. Based on: a–i, Anderson 13555, MICH; j, k, Prigge 3237, MICH. Drawn by Karin Douthit. First published in Contr. Univ. Michigan Herb. 25: 61. 2007; reproduced with permission of the author.